I don't know the values of these, so you'll have to wait on vinyl1 who knows a lot more than I do anyway!

Bronislaw Huberman didn't make as many recordings as most artists, so that might help your value go up. I would love to hear his rendering of the Beethoven Concerto since I've not ever heard it. I read a review that his live recording from New York is the performance to hear, and it would be especially gratifying to compare both the studio recording with Szell and the live one that can be obtained on CD at the following link:

As for the Tibor Varga, he's an awesome violinist that is not known for his Mozart! I guess I should say he is known for renderings of Bela Bartok and Alban Berg, so Mozart is just a little twinkling by comparison. I don't know, so many people like Mozart so much.

Hi Barrie- you know baby vultures don't listen to records I did a little more homework- the westminster and Bronislaw Hubermann- I found a single copy of each for sale in europe for relatively cheap prices. If I get my turntable out from the growing blob of cardboard and vinyl- I'll try to spin a side or two. Thanks very much for the great insight-m

...the last I can find- it seems that the prices are a bit psycho-
columbia p12-11806 mozart complete piano lili krass vienna 12 records.

This set is a 1973 Columbia Special Products issue. I have only two LPs from this set, P 11815 (K.414, K.459) and P 11818 (K.450, K.451), in 'regular' "hard" covers. Lili Kraus with The Vienna Festival Orchestra cond. by Stephen Simon.